Note: Permit only one operator on the machine at a time. Keep all other personnel away from the machine or in the operator sight.
Correct oil flow and pressure are necessary for correct operation. The output of the pump (oil flow) increases with an increase in engine speed (rpm) or swashplate angle. The output of the pump decreases when engine speed (rpm) or swashplate angle is decreased. Oil pressure is caused by resistance to the flow of oil.
Visually inspect the complete hydraulic system for oil leaks and damaged parts before you test the machine. For some of the tests, a magnet and a measuring rule are usable tools.
The hydraulic oil must be at the normal temperature for operation before any tests are performed.
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Diesel engine exhaust contains products of combustion which may cause personal injury. Always start and operate the engine in a well ventilated area, and, if in an enclosed area, vent the exhaust to the outside. |
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Personal injury can result from hydraulic oil pressure and hot oil. Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system. Make sure all of the attachments have been lowered, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand. |
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Personal injury or death can result from improperly checking for a leak. Always use a board or cardboard when checking for a leak. Escaping air or fluid under pressure, even a pin-hole size leak, can penetrate body tissue causing serious injury, and possible death. If fluid is injected into your skin, it must be treated immediately by a doctor familiar with this type of injury. |